The Syrp Super Dark Variable ND Filter is an invaluable tool for taking control of your natural lighting. With 5-10 stops the filter allows you to slow your shutter speed down or open your aperture up in even the brightest conditions, allowing for whole new creative opportunities. Made from high-quality Japanese glass, each kit comes protected in a genuine leather case that includes step-up rings to fit additional lens sizes. Small Super Dark VND Filter Kit Contents 1 x 67mm Variable ND filter 1 x Genuine leather case 1 x adapter for 58mm lenses 1 x adapter for 52mm lenses 1 x Syrp lens cloth. Exposure Reduces exposure by 5-10 stops (ND32-ND1024) Dimensions Filter 9mm thick Filter step up rings 3mm thick Mount Type The front of the Filters are threaded so you can stack other filters, will also fit a regular lens cap.